Question # 1

How many times, the alpha particle is more massive than electrons.

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6332

7332

8332

9332

I amu =

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9.31 MeV

931 MeV

9.031 MeV

None of above

Curie is unit of.

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Conductivity

Binding energy

Radioactivity

Resistivity

Which one belongs to lepton's group

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Electron

Muons

Neutrons

All of these

Binding energy per nucleus for uranium is above:

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6.7 Mev

7.7 Mev

6.9 MeV

7.9 MeV

How many neutrons are there in the nuclide Zn⁶⁶?

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22

30

36

66

For workers in nuclear facilities is, a weekly does of is normally considered safe

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1.0 msv

5.0 msv

2.0 msv

3.0 msv

The energy of photon for photoelectric effect is less than

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1 MeV

2 MeV

5 MeV

8 MeV

Two down and one up quarks make

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Proton

Neutron

~~photon~~

Positron

When a nucleus emits alpha particle its atomic mass decreases by

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1

2

3

4

A particles equal or greater in mass than of protons are called.

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Baryons

Leptons

Mesons

Quarks

Half life of Uranium -239 is

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26.5 minutes

24.5 minutes

25.5 minutes

23.5 minutes

The charge number of Ba is.

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197

141

56

85

A proton consists of quarks which are.

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Two up, one down

One up, two down

All up

All down

Various types of cancer are treated by

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Carbon -14

Nickel -63

Cobalt -60

Strontium -90

The energy equivalent of 1 kg of matter is about:

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10^-15 J

1 J

10^-12J

10^-17J

Energy needed to produce an electron hole in solid state detector is.

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1 to 2 eV

3 to 4 eV

6 to 7 eV

8 to 9 eV

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